Antiskidding device for automobiles.



` L. M.l KEEGH. ANTISKIDDING DBVIGE FR AUTOMQBILBS.

APPLICATION FILM; 0012.25, 1912. Y 1,091,142, l Patented Mar. 24, 1914 Z SHEETS-SHEET 1.

w/mfssfs.- y f lIllu/effroi? A TTUHNEY L. M. KEEGH.

ANTISKIDDING DEVICE lFOB, AUTOMOBILES.

Patented Vi111:11: 24, 1914 APIPLIOATION FILED 00T. 25, 1912.

INVENTOR 2 SHEETS-SHEET 2.

' w/mfssf S WML @NN S am LYMAN KEECH, 0F HARPURSVILLE, N EW YORK.

ANTIsK-IDDING DEVICE :con AUTOMOBILES.

Specification of Letters Patent.

Application led October 25, 1912. Serial No. 727,661.

To all whom 'it may concern Be it known that I, LYMAN M. KnnoH,a citizen of the United States, residing at Harpursville, in the county of Broome and State of New York, have invented certain new and useful Improvements in Antiskidding Devices for Automobiles, of which the following is a specification.

This invention relates to a novel device to prevent the skidding of automobiles and similar vehicles, of the type that is carried b v the rear of the vehicle, and adapted to be automatically thrown into engagement with the ground to prevent the machine from twisting from its course when traveling over slippery ground.

The object of the invention is to rovide a simple, durable and practical device that can be carried on the chassis of a vehicle, and upon -being brought into service will cut into surface of the road and prevent lateral movement of the rear ofthe vehicle.

Another object of the invention is to pro` vide a device which will not only prevent the lateral accidental movement of the car,

^ but will check the backward movement thereof also. This is an important asset to a device of this character, since it acts as an emergency brake to prevent the :vehicle accidentally descending an incline backward.

With the above and other objects in view, which will more readily appear as" the nature of the invention is better understood, the same consists in the novel construction, combination and arrangement of parts hereinafter more fully described, illustrated and claimed.

A preferred and practical embodiment of the invention is shown in the accompanying drawings, in which Figure 1 is a side elevation of a vehicle, partly in section, showing the application of one form of my invention. Fig. 2 is a rear view of a vehicle also showing the application of my invention.' Fig. 3 is a detail View modified form of turn handle for oper- Fig. 4 is a view similar to modified form of my inof a ating my device. Fig. l showing a vention. partly in section, showing the disk, wheel provided with pawl and ratchet mechanism. Fig. 6 is a cross section ofthe disk shown in Fig. 5. Fig. 7 is a sectional view taken on the line 10x-10 of Fig. 5.

Similar. reference characters designate are pivotally .otherwise movably Fig. 5 is an enlarged detail view.

correspondingparts throughout the several figures of the drawings.

Referring specifically to the structure dis-v closed in the. drawings, A designates thc body of' a vehicle and chassis, whicl1 has the usual rear axle B, inclosed in the' axle ca sing B', and also the usual gear box B2.

Patented Mar. 2 4, 1914.V

In the form of the invention shownin- Figs. 1 and 2 it will be seen that oneach side of the saidgear box B2 and on the 'axle casing B, are pivotally mounted the swinging lever arms F F whose upper portions extendabove the'axle as indicated at W and clamped on each side of the operating rod which is connected to the lever Y'on the.' transverse shaft has fixed thereto a pedal K. The lowerportions of said arms are adaptedl to receive the straight intermediate axle portion Dl of the shaft member D whose side extensions D2 extend upwardly and are clamped, or attached to the axle cas-- ing- B at C. The side extensions of the shaft D being pivotall-v mounted on the axle casing B, and concentric with the pivotal points of ing bracket that is well braced to withstand lateral strains. Upon .the axle portion D of the shaft.y D, the. disk E is rotatably -mounted, the said disk E being the part of this device that comes into contac'twith the ground and serves practically thesame functhe arms F F, constitute a swing.

Z, which tion to the .vehicle upon which it is mounted,

as a rudder does toa ship. A spring I con nected to the rod X andthe body of the machine holds. the device in its normal inoperative position, and to throw it 'into loperation the pedal K is pushed forward.

Fig. 3 illustrates ano-ther means for forcing the wheel E into the road-bed, and that is by drawing either of the rods G or X forward by a chain 10.

. .In the forml 0f .the invention shown in Flg. 4-the manipulation of t-he device is made possible by the operating rod G which is forked as at g-g. The said forked portion of the rod G is the axle portion Dof the shaft D, and the opposite-end of the said rod is connected to the lever G depending from the transverse'shaft G2, with the hand lever I-I.. In connection with this form of the invention it will be observed that the same is normally 'always out of service, that is, the disk E is held out of pivotally connected to which has connected th'erel,

the hand lever H is pulled toward the op- M M thus permit the 'the arms F vF are pivoted the pawls P P, the

believed that the advanta the invention willbe readi out further description.

I claim:

A device of the character described comprising in combination with the vehicle body andthe rear axle casing, including a pair of spaced apart lever arms pivotally connected at one end t0 the intermediate part of said axle casing, a shaft connecting the lever arms at the ends opposite their connection with the axle casing and .carrying a disk wheel, arm extensions connected to the lever arms at their lower ends and being pivotally connected to the axle casing at their opposite ends, an operating4 rod having a pivotal connection with said bracket and yieldingly connected to the vehicle body to hold the bracket normally inoperative, 4and means for rendering the device operative.

In testimony whereof I .have .affixed my signature in presence of two witnesses.

LYMAN M. KEECH.

contact with the ground by the spring I. When it-becomes necessary to use the device y apparent witherator, thus forcing the disk E into the surface of the road bed, through the medium of the rod Gr moving forward and pulling the axle uportion D onwhich E is mounted, downwardly.

It often happens that the brakes on a vehicle refuse to work when the latter is climbing a hill, and it is necessary to have some brake for the emergency other than those usually found on'the machine. The present device in contemplation of this, provides, in addition to the features already pointed out, the disk E with a double series of ratchet teeth J- J, as shown in Fig. 5. To

same being forced into engagement with the ratohets J J by the pressure-springs L L as shown` in Figs. 5 and 7. The said pawl and` ratchet mechanisms, inclosed in the'casings disk E to turn only the same way the wheels of the vehicle do, and upon being brought into use in an emergency, prevent the machine from traveling backward.

-From the foregoing specification, it Vis i Witnesses:

N. B. WILLIAMS, S. A. VALENTINE.

es and objects of' a bracket member 

